public void StartPoll()
{
TracingHelper.Info("start reader cardid");
while (true)
{
reader.GetCode(Sing, Context, delegate(Exception ex, uint sn, object context) {
if (ex != null)
{
TracingHelper.Error(ex, typeof(ReaderManager), "callBack return sn=" + sn);
}
if (sn > 0)
{
CallBack(null, sn, context);
reader.Halt();
reader.Beep(80);
}
//else
// CallBack(ex, sn, context);
});
Thread.Sleep(pollTimeSpan);
}
}
public static void Beep(int time)
{
reader.Beep(time);
}